1693675042 has 4 divisors (see below), whose sum is σ = 2540512566. Its totient is φ = 846837520.

The previous prime is 1693675021. The next prime is 1693675091. The reversal of 1693675042 is 2405763961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2405763961 = 109 ⋅22071229.

It can be written as a sum of positive squares in only one way, i.e., 1009904841 + 683770201 = 31779^2 + 26149^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1693675042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423418759 + ... + 423418762.

Almost surely, 2^1693675042 is an apocalyptic number.

1693675042 is a deficient number, since it is larger than the sum of its proper divisors (846837524).

1693675042 is an equidigital number, since it uses as much as digits as its factorization.

1693675042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846837523.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 1693675042 is about 41154.2833979648. The cubic root of 1693675042 is about 1192.0012091222.

The spelling of 1693675042 in words is "one billion, six hundred ninety-three million, six hundred seventy-five thousand, forty-two".